A lead viscoelastic damper with amplification function

Abstract

The invention provides a lead viscoelastic damper with amplifying function, which comprises two constraining bottom plates arranged vertically on the left and right, a lead viscoelastic damper and two amplifying lever structures; the lead viscoelastic damper is provided with two Between the constraining frames, it includes two outer shear plates and an inner shear plate clamped between the two outer shear plates; the inner shear plates are provided with two inner shear plates hinged symmetrically point; the two enlarged lever structures take the center of the inner shear plate as the center of symmetry and are conjugate symmetrical; the enlarged lever structures include sequentially hinged loading shafts, enlarged levers and transmission chain rods, and the transmission chain rods and The inner shear plate hinge point is hinged. The present invention can amplify the motion displacement of the loading shaft according to the proportional relationship by amplifying the cooperation of the lever and the transmission chain rod, and then make the relative rotation displacement of the inner shear plate and the outer shear plate to promote the shear deformation of the viscoelastic material and the lead core and consume less energy. can.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a lead viscoelastic damper with amplifying function. Background technique [0002] In recent years, frequent earthquakes have caused massive damage to building structures and brought huge losses to people's lives and property, while key structural components are often damaged under small deformation conditions. During earthquakes, existing energy dissipation devices are deformed The magnitude is small, and its energy consumption capacity cannot be fully utilized. Although the existing amplified dampers have been fully developed, they still cannot meet their energy dissipation capacity at displacement levels. Existing dampers often do not have energy dissipation amplification capabilities, and their energy dissipation capabilities at low displacement levels Low; under the action of wind vibration load, its deformation is small, and it is difficult to exert the energy di...

AI Technical Summary

Problems solved by technology

[0002] In recent years, frequent earthquakes have caused massive damage to building structures and brought huge losses to people's lives and property, while key structural components are often damaged under small deformation conditions. The range is small, and its energy consumption capacity cannot be fully utilized

Although the existing amplified dampers have been fully developed, they still cannot meet their energy dissipation capacity at displacement levels. Existing dampers often do not have energy dissipation amplification capabilities, and their energy dissipation capabilities at low displacement levels Low; under the action of wind vibration load, its deformation is small, and it is difficult to exert the energy dissipation capacity of the existing damper at this time; Significance, and can significantly improve the seismic performance of building structures

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